Anti-rear collision warning method, device and vehicle for abnormal braking
An early warning device and rear-end collision prevention technology, applied in the field of vehicles, can solve the problems of rear-end collision danger, collision in the car, discomfort, etc., and achieve the effect of improving safety and saving costs.
Active Publication Date: 2021-05-25
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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Problems solved by technology
When the vehicle in front suddenly brakes suddenly, the driver of the vehicle behind does not have enough time and braking distance to take emergency braking measures. At this time, if the vehicle behind is equipped with AEB function, AEB may be triggered, but AEB will generate a large load when triggered. Forward acceleration, the driver and the inertia will cause great discomfort, and even the rear passengers may be injured in the car because they are not wearing seat belts. Therefore, before the AEB and other functions are triggered, the front car Early warning of possible rear-end collision hazard due to unreasonable braking of the vehicle in front is necessary
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Embodiment 1
[0047] Rear-end accidents are often caused by the failure of the rear car to brake in time when the front car brakes. Under the environment of medium and high speed driving, the driver of the rear car driving in this lane, because the following distance is relatively short, when the front car suddenly brakes suddenly, the driver of the rear car does not have enough time and braking distance to take emergency braking measures, resulting in a rear-end collision will be inevitable. In the Advanced Driver Assistance System (ADAS system), if the rear car is equipped with the automatic braking (Autonomous Emergency Braking) function, referred to as the AEB function, it may trigger AEB, but when AEB is triggered, it will generate a large negative Acceleration, the driver and the inertia act forward, which will cause great discomfort, and even the rear passengers may be injured in the car because they are not wearing seat belts. Early warning of the possible rear-end collision hazard...
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The invention discloses an abnormal braking anti-rear-end collision warning method, device and vehicle. The method includes the following steps: acquiring the speed information of the vehicle in front in real time, the speed information including vehicle deceleration information; judging whether the vehicle in front brakes according to the speed information; When the vehicle in front is decelerating, obtain the brake light information of the vehicle in front and judge whether the brake light is on; when the brake light of the vehicle in front is not on, send a warning message to the driver of the vehicle; When the light is on, the road condition information of the road ahead is obtained, and the road condition information is road congestion information; according to the deceleration information of the vehicle ahead and the road condition information of the road ahead, it is judged whether the vehicle in front is braking abnormally; The driver sends a warning message, and judges the abnormal braking situation of the vehicle ahead in a timely manner through the braking frequency of the vehicle ahead and the road condition information ahead, so as to facilitate early intervention to avoid the risk of collision.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to an anti-rear collision warning method and device for abnormal braking and a vehicle. Background technique [0002] With the rapid development of the economy, the number of cars per capita has increased year by year. While cars greatly facilitate people's lives, they also bring increasingly prominent road traffic safety problems. Vigorously developing intelligent transportation system is one of the important means to solve traffic problems. The smart car system is an important part of the intelligent transportation system. The smart car system is ADAS, which uses advanced on-board sensors (millimeter wave radar, camera, ultrasonic radar, laser radar, etc.), advanced ECU controllers and actuators to automatically control the vehicle Or issue an early warning to ensure car safety. At present, L2-level intelligent driving based on forward-looking radar and / or forward-looking camera...
Claims
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IPC IPC(8): B60Q9/00
CPCB60Q9/008
Inventor 韩磊赛库塔特希尔·丹尼尔·阿赛史刘宽
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD